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Old 6th July 2014, 05:12 PM   #1
neazoi is offline neazoi  Greece
diyAudio Member
Join Date: Aug 2007
Default Multiband equilizer chip?

Hello I need to make an as simple as possible equilizer having 10-15 bands or so, maybe more.
Has anyone got an IC solution (or combination of ICs) that could provide this?

I am very interested in detailed low end bands 20Hz-60Hz, where at least 3-4 bands settings should exist for that range.
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Old 6th July 2014, 05:45 PM   #2
1audio is offline 1audio  United States
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This is your only hope: SigmaDSP Processors | Processors and DSP | Analog Devices

Doing that in the analog domain would take 15-20 opamps per channel and never be quite as capable.
Demian Martin
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Old 7th July 2014, 01:54 PM   #3
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Location: Zürich
10 Band Graphic Equalizer Circuit for Home Theater Applications | Homemade Circuit Designs Just for You

Takes 1 opamp per band plus 2 for input and output handling, so 3 quad opamps (e.g. TL074).

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